Holder for printing head frame



FIG. 1 is top, front and right side perspective view of a holder for printing head frame showing our new design;

FIG. 2 is top, rear and left side perspective view thereof;

FIG. 3 is bottom, front and left side perspective view thereof, and

FIG. 4 is right side elevational view thereof. 

The ornamental design for a holder for printing head frame, as shown. 